About

TubeFinder is an independent reference for vacuum tubes used in guitar amplifiers and high-fidelity audio. Our goal is to help you identify a tube, understand its alternate names, and find safe replacement guidance.

How we work

We publish identity information first and add electrical specifications only after checking them against a cited manufacturer datasheet. Read our editorial standards.

How we make money

We plan to earn commissions from approved retail partners. We currently have no approved partnerships. See the affiliate disclosure.